package lab02.test10;

public class test {
    public static void main(String[] args) {
        People people=new People();
        people.Speak();
        ChinaPeople chinaPeople=new ChinaPeople();
        chinaPeople.Speak();
        BeiJingPeople beiJingPeople=new BeiJingPeople();
        beiJingPeople.Speak();
        AmJericanPeople amJericanPeople=new AmJericanPeople();
        amJericanPeople.Speak();
    }
}
